Picker mechanism for looms.



Patented Sept. 7, 1909.

B. TRIMBLE. I PIGKER MECHANISM FOR LOOMS.

urmouxon nun NOV.18, 190a.

I 1 I 1 I 1 WI,

IN VENI'UH T iQFFIQQ.

-BAR'I'H-OLOMEWLTRI1VIBIJE, PROVIDENG'EfiRH'ODE ISLAND.

'ricKnR MECHANISM nose LOOMS;

T0v all whom it. may, concern:

. Be it known that I, BARTHOLQMEW TRIM BLE, a citizen of the UnitedStates, residing at'Providence, in the county :ofPrdvi denceand State ofRhode; Island, have in-EE ve ntedaa new. and useful Improvement inPicker Mechanlsms for Looms, of which the I n I following-is aspeclfication. This invention has-reference to an im-:

provement in looms and more particularly an improvement in the pickermechanism of looms. v i

In theeoperation of looms it is essentialf that the picker should :beguided-and throwni in a straight line in the direction in which? theshuttle is to be thrownxin orderto throwi the shuttle straightacrossthe, loom through? the shed and into the opposite shuttle box, Thepicker is usually guided by a picker rod which extends through thepickerand-is sup; ported at each end on the .-back of the shuttle: boxframe. In this construction the picker; wears loose laterally in a shorttimeon the picker rod and assumes more or less of an angle sidewiserelative to the picker rod or line of throw, and on thethrow of thepicker by the picker stick the shuttle is liable to and is at timesthrown at an angle laterally, thereby smashing the warp threads orthrowing the shuttle out of the loom.

The object of my invention is to prevent as far as possible lateral orsidewise-movement of the picker on the picker rod, caused by the wearingloose of the picker on the picker rod, and I accomplish this object byproviding the picker mechanism with a guide bar adapted to form anadditional guide for the picker and adjustably secured for wear to theback of the shuttle box frame parallel with the picker rod and in aposition for the back of the picker to engage lengthwise with the guidebar.

My invention consists in the peculiar and novel construction of a pickerguide mechanism for looms, said mechanism having in addition to theusual picker, picker stick and picker rod a guide bar and means foradjustably securing the guide bar to the back of the shuttle box frameparallel with the picker rod and in a position for the back of thepicker to engage longitudinally with the guide bar, as will be morefullyset forth hereinafter and claimed.

Figure 1 is a vertical sectional View of part of a drop box loom lookingat the back v Specification of Letterslatent. .pApplication filedNovember, 18, 1908.

Patented-Sept. 7, 190a.

. Serial No. 463,140.

of the lay and showing the same provided :wvith, .my improved. pickermechanism. Fig. :2.'.-is' a" top; plan view of Fig. 1, showing theapicker in operative engagement with the guidenban 'Fig. 3pis anenlarged detail end .view, showing, the means for adjustably securingthe guide .bar to the back of the shuttle box frame and Fig.4 is anenlarged ;deta'ilsectional viewztaken on line 4% of IF I through theshuttle box frame, picker rod and guide bar.

5111 the drawings, 11 indicates the side frame, 6 the lay, c the laysword, d the shut- :tle, boxes, 6. the shuttle bo'x frame, f f theapickerrddsupports,.g the picker rod, h the hpicker, and i the pickerstick of one side of a .drop: box loom provided with my improved-:pickerguidei.bar 7c. The picker rod supports f are on the back of theshuttle box frame 6, as shown in Figs. 1 and 2, and sup port the ends ofthe picker rod 9 each end of which is screw-threaded and extendsoutwardly through a hole in the supports a predetermined distance. Thepicker It has the usual hole 5 for the picker rod 9 and preferably aflat back edge 6, as shown in Figs. 2 and 4:. The picker guide bar 70consists of a straight flat bar having the ends 7 7 bent at right anglesto the bar, each end 7 having a horizontal slot 8 for the ends of thepicker rod g. The picker guide bar his placed back of and parallel withthe picker rod 9 in a position for the ends of the picker rod 9 toextend through the slots 8 8 in the ends 7 7. of the guide bar and forthe back edge 6 of thepicker hi to engage with the inner face of theguide bar and secured by tightening nuts 9 9 on the ends of the pickerrod 9, thereby clamping the ends 7 7 of the guide bar between thesupports f f and the nuts 9 9.

In the operation of my improved picker mechanism the picker guide bar 76forms an additional guide for the picker it and revents lateral movementor wabbling of the picker h on the picker rod 9. As the picker wearsloose on the picker rod the guide bar is is adjusted toward the pickerrod 9, thereby taking up the wear on the picker. As the throw of thepicker is now always in a straight line parallel with the line of throwof the shuttle, the liability of smashing the warp threads or throwingthe shuttle out of the loom by throwing the shuttle at an anpickers istaken no the pickers will last longer than heretofore, therebydecreasing the maintenance cost of the loom. V 7

It is evident that the picker guide bar 70 may be adjustably secured inits operative position to the back of the shuttle boX frame e in anywell known Way, without materially affecting the spirit of my invention.

Having thus described my invention, I claim as neW and desire to secureby Letters Patent 1. In a picker mechanism for looms, a guide baradapted to engage with the back edge of the picker and hold the pickerfrom lateral movement on the picker rod, and means for adjustablysecuring the guide bar to the shuttle boX frame back of the picker rodand parallel with the picker rod.

2. In a picker mechanism for looms, a picker rod held at each end insupports on the back of the shuttle boX frame, a picker on the pickerrod having a straight back edge parallel with the picker rod, a guidebar having a straight fiat face adapted to engage with the straight backedge of the picker and hold the picker from lateral movement on thepicker rod, and means for V securing the guide bar to the picker rodsupports back of and parallel with the picker rod.

3. In a picker mechanism for looms, a shuttle box frame, supports on theback of theshuttle box frame, a picker rod held at eachend in thesupports, a picker on the picker rod having a straight flat back edgeparallel with the picker rod, a guide bar having a straight fiat innerface adapted to engage with the back edge of the picker and hold thepicker from lateral movement on the picker rod, and means for adjustablysecuring the ends of the guide bar to the picker rod supports parallelWith the picker rod and in a position for the inner face of the guidebar to engage with the back edge of the picker.

4. In a picker mechanism for looms, the combination with a shuttle boxframe 0 having the supports f f, a picker rod 9 having screw-threadedends, a picker h having the hole 5 and a flat back edge 6, and a pickerstick i, of a guide bar k having the ends 7 7 bent at right angles, eachend having a horizontal slot 8, and means for adjustably securing theguide bar to the supports f f consisting of nuts 9 9 on thescrew-threaded ends of the picker rod g, as described.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing Witnesses.

BARTHOL MEVV TRIMBLE.

J. A. MILLER.

